Endeavour flies over Ariz. en route to Calif. home

Credit: AFP/Getty Images

US space shuttle Endeavour lifts off from Kennedy Space Center in Florida on May 16, 2011 for its final mission and what will be the penultimate flight for the US shuttle program. "We want to thank all the tens of thousands of employees who have put their hands on this incredible ship," shuttle commander Mark Kelly said moments before liftoff at 8:56 (1256 GMT). AFP PHOTO/Bruce WEAVER (Photo credit should read BRUCE WEAVER/AFP/Getty Images)